
The Orthogonal Bet Florian Jehn on Summarizing Collapse Research
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Jan 28, 2026 Florian Jehn, researcher who runs the Existential Crunch literature review on societal collapse and global catastrophic risk. He talks about how collapse studies span history, economics, environment and statistics. He explains definitions like collapse versus catastrophe, debates whether our era is unique, and explores resilience, recovery, and how research can inform policy and preparedness.
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Living Literature Review For Collapse Research
- Existential Crunch is a living literature review that summarizes societal collapse research so readers don't have to read papers themselves.
- Florian updates posts when new papers appear to keep the review current and useful for diverse audiences.
Blog Born From A Conversation And Grant
- Florian started the blog after contacting Matt Clancy and receiving encouragement, then obtained an Open Philanthropy grant to fund his time.
- He has been running Existential Crunch for around two and a half years.
Interdisciplinary Audience Mix
- The blog attracts readers from EA/rationality, scientists, policymakers and the general public interested in collapse.
- Florian writes to serve a broad audience while keeping technical accuracy and accessibility.


